Arauco weather in January

In January, Arauco sees average daytime highs of 23°C and overnight lows near 12°C, with 10 mm of rain across 1.7 wet days and about 14.3 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 77% of the time in January, and the air most often feels dry.

Daylight stretches from about 14 h 30 min at the start of January to 13 h 54 min by month's end. Set against the rest of the year, January is Arauco's 2nd-clearest and 1st-windiest month. For the whole year in context, see Arauco's year-round climate.

Daytime high
23°
1st warmest
Overnight low
12°
12th coldest
Rainfall
10 mm
1.7 wet days
Daylight
14 h 18 min
6:54 AM – 9:12 PM
Cloud cover
21%
2nd clearest
Wind
14 km/h
1st windiest
Solar energy
8.52 kWh/m²
Travel score
9.0
out of 10

Arauco is city in Chile.

Density
3,997/km²
people per km²
Founded
1552

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical January day in Arauco reaches about 23°C in the afternoon and slips back to 12°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 27°C. Set against its neighbours, January runs about 2°C warmer than December and on par with February.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12311
22312
32312
42312
52312
62312
72312
82312
92312
102312
112312
122312
132412
142412
152412
162412
172412
182412
192412
202412
212412
222412
232412
242412
252412
262412
272412
282412
292412
302412
312412

Arauco weather by month

How January compares with the rest of the year at a glance. January is the 1st-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 12°101.714.39.0
Feb23° / 12°152.213.48.9
Mar21° / 10°253.512.38.1
Apr18° / 726.211.16.4
May15° / 17810.9104.2
Jun12° / 25014.89.52.9
Jul12° / 19613.69.72.9
Aug13° / 16712.410.63.4
Sep15° / 888.111.74.7
Oct17° / 617.4135.8
Nov19° / 324.3147.3
Dec22° / 11°253.514.58.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 77% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 9% of January, with mostly cloudy or overcast conditions the remaining 14%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28317
38416
48416
58416
68416
78416
88416
98416
108416
118515
128515
138614
148614
158614
168713
178713
188812
198812
208812
218911
228911
238812
248812
258812
268713
278713
288713
298713
308614
318614

Chance of precipitation in January

Any precipitation

Arauco gets around 10 mm of rain over 1.7 wet days in January, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 6% and peaks near 8% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
18
28
37
47
57
66
76
86
96
106
116
126
136
146
155
165
175
185
195
205
215
225
236
246
256
267
277
287
297
307
317

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the dry band about 80% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
183161
283161
383161
483161
583161
682171
782171
882171
982171
1081181
1181181
1280191
1380191
1479201
1579201
1679201
1778211
1878211
1978211
2078211
2178211
2278211
2377212
2477212
2577212
2678202
2778202
2878202
2979192
3079192
3179192

Wind in January

Winds average 14 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 14 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 14 h 30 min at the start of January to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over January. Sunrise moves from 6:41 AM to 7:09 AM, and sunset from 9:12 PM to 9:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.56:419:12
214.56:419:12
314.56:429:12
414.56:439:13
514.56:449:13
614.56:459:13
714.56:459:13
814.46:469:13
914.46:479:13
1014.46:489:13
1114.46:499:12
1214.46:509:12
1314.46:519:12
1414.36:529:12
1514.36:539:12
1614.36:549:12
1714.36:559:11
1814.36:569:11
1914.26:579:11
2014.26:589:10
2114.26:599:10
2214.27:009:09
2314.17:019:09
2414.17:029:08
2514.17:039:08
2614.17:049:07
2714.07:059:07
2814.07:069:06
2914.07:079:06
3013.97:089:05
3113.97:099:04

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 8.52 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.78 kWh/m² to a high of 8.52 kWh/m² in January across the year — January's 8.52 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
18.7Intense
28.7Intense
38.7Intense
48.7Intense
58.7Intense
68.7Intense
78.7Intense
88.6Intense
98.6Intense
108.6Intense
118.6Intense
128.6Intense
138.6Intense
148.6Intense
158.6Intense
168.6Intense
178.5Intense
188.5Intense
198.5Intense
208.5Intense
218.4Intense
228.4Intense
238.4Intense
248.3Intense
258.3Intense
268.3Intense
278.2Intense
288.2Intense
298.1Intense
308.1Intense
318.0Intense
Planning a trip in January

Hazard calendar for Arauco

In seasonPeak

None of Arauco's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Arauco's rainy season runs May–August, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Arauco?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

9.0
Sightseeing
1st-best month of the year
7.2
Beach & pool
1st-best month of the year

January is one of the better times to visit Arauco for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Arauco in January

From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In January, Arauco sees daytime highs around 23°C and nights near 12°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

Sea temperature near Arauco in January

The nearest coast averages about 15°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 km away) is warmest in January at about 15°C and coldest in August near 12°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

10°12°14°16°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan15Bracing
Feb15Bracing
Mar14Bracing
Apr14Bracing
May13Bracing
Jun12Bracing
Jul12Bracing
Aug12Bracing
Sep12Bracing
Oct12Bracing
Nov13Bracing
Dec14Bracing

UV index in Arauco in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Arauco peaks around January 12 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateVery highExtremeJan 12UV 12Jun 16UV 2
UV index (midday)Level
Jan12Extreme
Feb11Extreme
Mar9Very high
Apr5Moderate
May3Moderate
Jun2Low
Jul3Moderate
Aug3Moderate
Sep5Moderate
Oct8Very high
Nov10Very high
Dec12Extreme
Location & terrain

Where is Arauco?

Arauco sits at 37.2°S, 73.3°W, 13 m above sea level, in Chile. The nearest listed city is Lota, 22 km away.

Topography around Arauco

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Arauco.

Within 3 km, the terrain around Arauco has only modest variations in elevation — a maximum elevation change of 107 m around an average of 20 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 656 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,511 m.

The land around Arauco is covered by trees (35%), water (31%) and grassland (20%) within 3 km, trees (45%) and water (37%) within 16 km, and trees (49%) and water (38%) within 80 km.

3 km
107 m
16 km
656 m
80 km
1,511 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Lota 22 km · Curanilahue 26 km · Coronel 28 km · Chiguayante 44 km · Los Álamos 44 km · Hualqui 46 km · San Pedro de la Paz 49 km · Lebu 50 km

Chile travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
220 V · 50 Hz
Prices
≈ 48% of US
price level, 2025
GDP per capita
$17,995
2025
Happiness
6.3 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
6.3
per 100k, 2023
Road deaths
14.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 517
Religion
Catholic 57%none 26%Evangelical or Protestant 16%other Christians and traditions related to Christ 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Arauco (-37.2463°, -73.3175°, elevation 13 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).